Machine for turning and drilling metal



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' MAGNINB Non TURNING AND DNILLING METAL.

No. 425,556. Patente@ Apr.` 15, 1890.

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UNITED r STATES 5PATENT NEricEo MACHINE' FOR TURNING AND DRlLLlNG METAL.

SPECIFICATION forming part of Letters Patent No. 425,556, dated April15,' 1890.

Application filed October 24, 1889. Serial No. 328.044. (No model.)

To all whom it may concern:

Be it known that I, WILLIAM VATTIE, a citizen of the United States,residing at forcester, in the county of Worcester and State ofMassachusetts, have invented certain new and useful Improvements inTurning and Drilling Machines; and I do hereby declare that thefollowing is a full, clear, and exact description thereof, which, inconnection with the drawings making a part of this specication, willenable others skilled in the art to which my invention belongs to makeand use the same.

My invention relates to turning and drilling machines in which thepieces to be turned and drilled are fed to the machine through amagazine; and the object of my invention is to provide a machine forturning and drilling pulleys and other metalpieces which shall beautomatic in its operation; and my invention consists in certain novelfeatures of construction and operation of a turning and drillingmachine, as will be hereinaftery fully described, and the naturet-hereof indicated by the claim.

Referring to the drawings, Figure 1 is a side elevation of a machineembodying my improvements. Fig. 2 is a plan view of the same. Fig. 3 isa detail view of the wormshaft and its accompanying worin-gears. Fig. etis a cross-section on line c at, Fig. l, looking in the direction of thearrow o., same figure. Fig. 5 is. a cross-section on line Fig. 1,looking in the direction of the arrow b, same figure. Fig. G is anenlarged detail drawing of the feed-plunger. Fig. 7 is an end elevationof the same, looking in the direction of the arrow, Fig. 6. Fig. 8 is anenlarged detail drawing of the grip-bar. Fig. 9 is an end elevation ofthe. same, looking in the direction of the arrow, 8. Fig. 10 is'anenlarged detail drawing of the grip-cam. Fig. 11 is an enlarged detaildrawing of the feedcam. Fig. 12 represents a roll or pulley after thesame has been turned and drilled by my machine. Fig. 13 represents, onan enlarged scale, a det-ached central longitudinal section of thatportion of the machine in the space about one inch wide on either sideof sections line a: az, Fig. 1. Fig. 14C represents, on an enlargedscale, a front view of the cutter-head and a pulley in position thereinbeing operated on 5 and Fig. 15 is a central section on linegy y, Fig.14..

I have shown in the drawings my machine madedouble; but as one side ofthe machine is just the reverse of the other, the description of oneside will describe the other side. Therefore it will only be necessaryto describe one side of the machine.

In the accompanying drawings, l is the bed of my machine, upon which thehead-stocks and stands for holding the various parts of my machine aresecured.

2 is the driving-pulley, which is fast to the shaft 3, running in theboxes or bearings 4C of the head-stock 5, and receives its motion from abelt and counter shaft overhead. shown.) The gear Gis fast on the shaft3, and, revolving with the driving-pulley 2, imparts motion to the twogears 7.

The gear 7 on one side of the machine, receiving mot-ion from ther gear6, turns freely on the shaft 8, and has the face of itshub cut intoteeth to receive the teeth of the clutchsleeve 9, which slides freely onthe shaft S by means of the handle 10, and is kept from revolving aboutthe shaft S by a key or feather. (Not shown.) Then the teeth of theclutch- 'sleeve 9 are engaged with the teeth in the face of the hubofthe gear 7, the shaft S will revolve in the bearing in the head-stock5 in a direction opposite to that of the shaft 3, and the velocity ofrotation of the shaft S will be to the velocity of rotation of the shaft3 as the number of teeth in the gear 6 is to the number of teeth in thegear 7. The mill or cutter head 11, of any ordinary construction andhaving the cutters 11 secured on the face thereof, is fast to the shaftS and rotates with it. The gear 2 is fast to the shaft S and givesmotion to the worm-shaft 13 through the system of gears 1i, 15, and 1G.(See Fig. 4.) The gears 14 and l5 are fast together and turn freely onthe pin 31, fast in the arm 32,which turns freely on the worm-shaft 13,and is held rigid to the bed 1 by the screw 33, Fig. 1. The velocity ofthe worm-shaft 13 can be altered by changing the gear la for one ofgreater or less number of teeth, and the slot 34 in the swinging arm 32is to allow for change of position in bringing the two gears 12 and 14into mesh.

The rotation of the worm-shaft 13 in the (Not y bearings 35 causes therevolution of the three cam-shafts 17, 18, and 19 by the worms 20, 21,

and 22, fast on the shaft 13, (22 being shown in Fig. 2 by the removalof some parts ot the machine,) meshing, respectively, with theworin-gears 23, 24, and 25, which are fast, respectively, on the shafts17, 18, and 19.

The feed-cam 26 is fast on the shaft 17, held in the bearings 36 and 37,Fig. 5, and by its lo rotation in the direction of the arrow, Fig. 1,

gives motion to the segment-gear lever 27, hung freely on. the pin 38 bythe roll 28 at the lower end of the segment-gear lever 27, travelingfreely in the groove of the cam 26. The segment-gear meshes with therack 29 in the feed-plunger 30, ca-rried in the bearings 39 of thehead-stock 40 and parallel with the shaft 8, causing the feed-plunger 30to move in accordance with the shape of the cam 26, the zo rack 29answering for a key or feather by passing through the bearings 39, andso preventing any rotating movement of the feedplunger 30.

Figs. 6 and7 show an enlarged detail drawing of the feed-plunger 30. Theplunger 30 l is hollow, and the central part of the chainber 41 is solarge that the drill-carrying spindle will not touch it, but will bearonly at the end of the feed-plunger toward the mill y 3o or cutter headat the smaller part 42 of the chamber, thus giving smallfriction-surface. The extreme end of the plungerV has a recess 43, ofsuch a size as to freely admit the hub of the pulley to be turned anddrilled,

- while the smallest part of the chamber 44,

which opens into the recess 43, is just the size of the drill used andis perfectly concentric with the outside of the plunger. The beveled end45 of the plunger 30 is intended .1,0 to fit into and fill the insideedge of the rim of the pulley to be turned and drilled, and when thepulley is pressed upon the plunger 30 by the grip-bar the rough pulleyis centered by the inside edge of the rim and the 45 hole is bound ltobe drilled concentric with this inside edge, and consequently with theoutside surface after the plunger has fed the pulley through thecutter-head 11. Therefore the result must be aconcentric andwellbalanced pulley.

The grip-cam 46 vis fast on the shaft 18, held iii the bearings 18', andrevolves in the direction of the arrow, Fig. 1. The roll 46 travelsfreely in the groove of the cam 46, and imparts the motion of the cam 46to the slidebar 47, which slides freely in the bearing 48 in a directionparallel to the shaft 8 and the plunger 30, and the motion is conveyedfrom the slide-bar 47 to the grip-bar 49 through the 6o fastening 50,made fast to the slide-bar 47 by the screw 51, Fig. 2, and holding thegrip-bar 49 by the set-screw 52. lThe grip -bar passes through thehollow center of the shaft 8, and has a bearing only at the end nearcutterhead 11 to give as little friction-surface as possible.

Figs. 8 and 9 show an enlarged detail drawing of the grip-bar. The end53 has a recess 54 at the extreme end, of such a size as tofreely admitthe hub of the pulley to be turned and drilled, and a still deeperrecess 55 to receive the end of the drill when it shall have passedthrough the pulley. The extreme end of the part 53 is provided withnotches 59, which fit loosely into the holes 56 in the web 57 of thepulley, Fig. 12, and prevent any tendency on the part of the pulley torotate, the diameter of the end of the bar 53 being small enough topress against the web 57 of the spring 62 every time the pulley isgrippedv and centered, and this compression will be greater or less,according to the imperfections in the different pulleys of acertainclass and size.

The drill-cam 65 is fast on the shaft 19, held in the bearings 66, andrevolves in the direction of the arrow, Fig. l. travels freely in thegroove of the cam 65 and imparts the motion of the cam 65 to theslidebar 67, which slides freely in the bearing68I in a directionparallel to the shaft 8 and the' plunger 30. The motion of the slide-bar67 is conveyed to the drill-carrying spindle 70 through the connection71, made fast to the slide-bar 67 by the screw 72, Fig. 1, and forked atthe hub 73, so as to allow the spindle 70 to turn freely within thefork.

' The drill-pulley 74 is fast ou the shaft 75,

which is carried by the bearings l7 6 in the head-stock 77. The shaft ishollow, and the spindle 70 is of a size to slide freelybackward andforward through it on a feather or key, so that thespindle 70 willrevolve when the pulley 7 4 revolves. the end of the spindle 70 and hasa bearing in the part 44, Fig. 6, of the chamber within the plunger 30.

The driving of the pulley 7 4, and consequently the rotating motion ofthe drill 78, is effected by a belt from a counter-shaft overhead, (notshown,) and is entirely independent of the motion of the maindriving-pulley The roll 69 IOO The drill 78 is fast on 2, while thelongitudinal motion of the drill 78 and spindle 70 is directly throughthe medium of the pulley 2.

'The rolls or pulleys 83 are fed to the machine by means of the magazineor feedbring the roll or pulley resting upon it in a line with theplunger 30 and grip-bar 49.

The operation of the machine is as follows: Supposing the drill-pulley74 to be running and the magazine lilled, as represented in thedrawings, by the pulleys S3, the feed-plunger 30 in its extreme rearwardposition, which allows a pulley to drop onto the shelf S2 between theplunger 30 and the grip-bar 49, which is advancing toward its extremeforward position. The pulley as it rolls from the end of the magazine iskept from falling onto its side by the pressure of the light flat springS4, (see Fig. 5,) under which it has run by its own momentum, and whichis fastened to the shelf S2 of the magazine The camshaft 17 turns in thedirection indicated by the arrow and the plunger 30 advances and movesthe pulley toward the cutter-head ll. The camshaft 18 turns in thedirection indicated by the arrow and the grip-bar 49 advances to itsextreme forward position and grips the pulley firmly against the plunger30, thereby centering it with the cutter-head. The spring 62 in thegrip-bar 49 is somewhat compressed, and thus allows for any Variation inthickness of the different pulleys. The plunger 30 starts forwardrapidly at lirst, as the roll 2S on segment-gear lever 27 passes fromthe point a to the point b on the cam 26, Fig. ll, and the pressure ofthe flat spring 82 maintains the pulley in its upright position. Theseveral cams are so timed that the grip-bar 49 arrives at its extremeforward position just before the cam-roll 2S reaches the point Z) on thecam 2G, and the firm gripping and the centering of the roll and thecompression of the coil-spring 62 are the consequence. The plunger 30and the grip-bar 49 now move together toward the cutter-head, carryingthe roll firmly between them, and in passing through the cutterhead thepulley is turned to the required size. Meanwhile the shaft 19 has beenturning in the direction indi cated by thc arrow, and the cam G5 is sotimed thatthe drill 7S is advanced j ustas the pulley is gripped by thegrip-bar 49. The shape of the drill-cam is much steeper than thefeed-cam 26, causing the drill to overtake the pulley and pass throughit, drilling a uniform hole concentric with the turned surface. Thedrill passes through the pulley and is withdrawn just as the pulleypasses wholly through the cutter-head and drops down. Then the roll 45on the slide-bar 47 reaches the point c, Fig. l0, in the cam 4G, thegrip-bar 49 is rapidly withdrawn as the roll passes down the steepincline of the cam to the point d, and the finished pulley is allowed todrop below through the cutter-head into a box placed for its reception.The roll 28 of the cam 26 now passes from the point f to the point g,bringing the plunger 30 to its original position, and the roll 46advances to the point h on the cam 46, and the operation is completed.

My machine above described is especially adapted for turning anddrilling the rolls used on the pattern-chains of looms, one of which isshown full size in Figxl.

It will be understood that the details of construction of the severalparts of my machine may be Varied from what is shown and described andequivalent devices used without departing from the principle of my in-Vention.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

In a turning and drilling machine, the combination, with mechanism forgripping and centering the rolls or pulleys and mechanism for feedingthem to the cutter-head, and means for operating said mechanisms, ofmechanism for drilling the center hole in said rolls or pulleys andmechanism for turning the exterior surface thereof, and means foroperating said mechanisms, all combined together and operatedsubstantially as set forth.

XVILLIAM VATTIE.

lVitnesses:

JOHN C. DEWEY, EDMUND F. SEYMOUR.

